From e4fa1e69e7ebfb627c7198fd1a9881e9327ec4d4 Mon Sep 17 00:00:00 2001
From: Pinapelz <yukais@pinapelz.com>
Date: Sat, 28 Jun 2025 17:26:46 -0700
Subject: initial commit: scaffolding

---
 .../rxjs/src/internal/operators/switchAll.ts       | 65 ++++++++++++++++++++++
 1 file changed, 65 insertions(+)
 create mode 100644 node_modules/rxjs/src/internal/operators/switchAll.ts

(limited to 'node_modules/rxjs/src/internal/operators/switchAll.ts')

diff --git a/node_modules/rxjs/src/internal/operators/switchAll.ts b/node_modules/rxjs/src/internal/operators/switchAll.ts
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+++ b/node_modules/rxjs/src/internal/operators/switchAll.ts
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+import { OperatorFunction, ObservableInput, ObservedValueOf } from '../types';
+import { switchMap } from './switchMap';
+import { identity } from '../util/identity';
+
+/**
+ * Converts a higher-order Observable into a first-order Observable
+ * producing values only from the most recent observable sequence
+ *
+ * <span class="informal">Flattens an Observable-of-Observables.</span>
+ *
+ * ![](switchAll.png)
+ *
+ * `switchAll` subscribes to a source that is an observable of observables, also known as a
+ * "higher-order observable" (or `Observable<Observable<T>>`). It subscribes to the most recently
+ * provided "inner observable" emitted by the source, unsubscribing from any previously subscribed
+ * to inner observable, such that only the most recent inner observable may be subscribed to at
+ * any point in time. The resulting observable returned by `switchAll` will only complete if the
+ * source observable completes, *and* any currently subscribed to inner observable also has completed,
+ * if there are any.
+ *
+ * ## Examples
+ *
+ * Spawn a new interval observable for each click event, but for every new
+ * click, cancel the previous interval and subscribe to the new one
+ *
+ * ```ts
+ * import { fromEvent, tap, map, interval, switchAll } from 'rxjs';
+ *
+ * const clicks = fromEvent(document, 'click').pipe(tap(() => console.log('click')));
+ * const source = clicks.pipe(map(() => interval(1000)));
+ *
+ * source
+ *   .pipe(switchAll())
+ *   .subscribe(x => console.log(x));
+ *
+ * // Output
+ * // click
+ * // 0
+ * // 1
+ * // 2
+ * // 3
+ * // ...
+ * // click
+ * // 0
+ * // 1
+ * // 2
+ * // ...
+ * // click
+ * // ...
+ * ```
+ *
+ * @see {@link combineLatestAll}
+ * @see {@link concatAll}
+ * @see {@link exhaustAll}
+ * @see {@link switchMap}
+ * @see {@link switchMapTo}
+ * @see {@link mergeAll}
+ *
+ * @return A function that returns an Observable that converts a higher-order
+ * Observable into a first-order Observable producing values only from the most
+ * recent Observable sequence.
+ */
+export function switchAll<O extends ObservableInput<any>>(): OperatorFunction<O, ObservedValueOf<O>> {
+  return switchMap(identity);
+}
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